package com.itheima.day18.junit.test1;

import org.junit.Test;

public class Demo {
    public static void main(String[] args) {

    }

    @Test
    public void show() {
//        System.out.println(2 / 0);
        int a = 10;
        int b = 20;
        int sum = Math.addExact(a, b);
        System.out.println(sum);
    }
}
